How to Unblock MTN, Airtel, and Other SIM Cards With NIN Using Short Codes

If your mobile line recently got barred due to the ongoing NIN–SIM linkage exercise in Nigeria, you’re not alone. Many subscribers across MTN, Airtel, Glo, 9mobile, and other networks have experienced temporary disconnections as the government works to clean up and secure the national SIM registration database.

The good news? You can quickly unblock your SIM card using simple short codes or basic verification steps provided by your network operator. Below, you’ll find the updated and easy-to-follow instructions for all major telecom providers.

1. How to Unblock Airtel SIM Card With NIN

Airtel users can restore service in seconds through USSD:

• Dial *121#

• Select the NIN linking option and enter your 11-digit NIN

• You’ll receive a confirmation message once your SIM has been successfully unblocked

2. How to Unblock 9mobile SIM Card With NIN

9mobile makes the process very straightforward:

• Dial *200*8#

• Follow the on-screen instructions to complete your NIN submission and unblock your line

3. How to Unblock Glo SIM Card With NIN

Glo subscribers can use a direct short code to link and unblock their SIM:

• Dial *109*NIN#
  For example: *109*12345678901#

• Follow the prompts to submit your NIN and restore connectivity

4. How to Unblock MTN SIM Card With NIN

MTN requires users to confirm or link their NIN online:

• Visit the MTN NIN portal: nin.mtn.ng

• Check your NIN linkage status

• If not linked, submit your NIN and verify with the required OTP

• Once your NIN is confirmed, your MTN line will be automatically unbarred

5. How to Unblock Smile SIM Card With NIN

Smile Communications allows customers to send in their NIN for verification:

• Email your NIN to customercare@smile.com.ng
  OR

• Call 0702 044 4444

• After giving consent and completing verification, your line will be unblocked

6. How to Unblock Spectranet SIM Card With NIN

For Spectranet users:

• Call 0800 234 5678 or email care@spectranet.com.ng to submit your NIN

• You may also submit your NIN online

• Note: You must still complete physical KYC at a Spectranet store before your line can be unbarred

7. How to Unblock Ntel SIM Card With NIN

Ntel requires a physical verification step:

• Visit any Ntel store with your NIN

• Your fingerprint will be used to authenticate your KYC profile

• Once verified, your line will be updated and unblocked

Final Thoughts

Unblocking your SIM card after a NIN-related disconnection is easier than it seems. By using the short codes and procedures above, you can quickly get your line working again—whether you’re on MTN, Airtel, Glo, 9mobile, Smile, Spectranet, or Ntel.